Results 11 to 20 of about 18,734 (309)
Dephasing effect promotes the appearance of quantized Hall plateaus
New Journal of Physics, 2023 The quantum Hall effect (QHE) is a topologically protected phenomenon which has been observed in various systems. In experiments, the size of Hall bar device to realize the QHE is generally much larger than the phase coherence length, in which the ...
Jing-Yun Fang, Ai-Min Guo, Qing-Feng Sun
doaj +1 more source
Quantum skyrmion Hall effect in f-electron systems
Physical Review Research, 2023 The flow of electric current through a two-dimensional material in a magnetic field gives rise to the family of Hall effects. The quantum versions of these effects accommodate robust electronic edge channels and fractional charges.
Robert Peters +2 more
doaj +1 more source
Quantum Hall effect in quantum electrodynamics [PDF]
Physical Review B, 2009 4 pages, 2 figures, LaTeX, perturbative result ...
Alexander A. Penin, Alexander A. Penin
openaire +3 more sources
Quantum Spin Hall Effect [PDF]
Physical Review Letters, 2006 The quantum Hall liquid is a novel state of matter with profound emergent properties such as fractional charge and statistics. Existence of the quantum Hall effect requires breaking of the time reversal symmetry caused by an external magnetic field. In this work, we predict a quantized spin Hall effect in the absence of any magnetic field, where the ...
B. Andrei Bernevig, Shou-Cheng Zhang
openaire +4 more sources
Nature Communications, 2021 The broken-symmetry edge states that are the hallmark of the quantum Hall effect in graphene have eluded spatial measurements. Here, the authors spatially map the quantum Hall broken-symmetry edge states using atomic force microscopy and show a gapped ...
Sungmin Kim +14 more
doaj +1 more source
Quantum Hall effect originated from helical edge states in Cd_{3}As_{2}
Physical Review Research, 2021 The recent experimental observations of the quantum Hall effect in three-dimensional (3D) topological semimetals have attracted great attention, but there are still debates on its origin.
Rui Chen +4 more
doaj +1 more source
Ferromagnetic-electrodes-induced Hall effect in topological Dirac semimetals
Physical Review Research, 2021 We propose an unconventional type of Hall effect in a topological Dirac semimetal with ferromagnetic electrodes. The topological Dirac semimetal itself has time-reversal symmetry, whereas attached ferromagnetic electrodes break it, causing the large Hall
Koji Kobayashi, Kentaro Nomura
doaj +1 more source
Progress in Topological Mechanics
Applied Sciences, 2022 Topological mechanics is rapidly emerging as an attractive field of research where mechanical waveguides can be designed and controlled via topological methods.
Shengjie Zheng, Guiju Duan, Baizhan Xia
doaj +1 more source
3D quantum Hall effect in a topological nodal-ring semimetal
Quantum Frontiers, 2023 A quantized Hall conductance (not conductivity) in three dimensions has been searched for more than 30 years. Here we explore it in 3D topological nodal-ring semimetals, by employing a minimal model describing the essential physics.
Guang-Qi Zhao +5 more
doaj +1 more source
QUANTUM HALL EFFECTS IN SILICENE [PDF]
Journal of the Physical Society of Japan, 2012 We investigate quantum Hall effects in silicene by applying electric field $E_z$ parallel to magnetic field. Silicene is a monolayer of silicon atoms forming a two-dimensional honeycomb lattice, and shares almost every remarkable property with graphene. A new feature is its buckled structure, due to which the band structure can be controlled externally
openaire +3 more sources